Preparation of magnetic nanoparticles and their assemblies using a new Fe(II) alkoxide precursor

G. B. Biddlecombe, Y. K. Gun'ko*, J. M. Kelly, S. C. Pillai, J. M.D. Coey, M. Venkatesan, A. P. Douvalis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Hydrolysis of the new metallorganic precursor Fe(OBut)2-(THF)2 followed by ultrasound and thermal treatment yielded either nanoparticles of γ-Fe2O3 or Fe3O4, depending on the process conditions. The samples have been characterised by X-ray powder diffraction, TEM, SEM, Mössbauer spectroscopy and magnetization measurements. The maghemite nanoparticles (9±2 nm) are superparamagnetic and form unique needle-like assemblies of nanoparticle arrays. The nanoparticles of Fe3O4 (19±2 nm) form plate-like aggregates about 10 μm thick.

Original languageEnglish
Pages (from-to)2937-2939
Number of pages3
JournalJournal of Materials Chemistry
Volume11
Issue number12
DOIs
Publication statusPublished - 2001
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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